A door latch photographed at Fort Christian, Charlotte Amalie, on St. Thomas in the U.S. Virgin Islands. Resting over Charlotte Amalie Harbor since 1672, Fort Christian is the oldest standing structure in the Virgin Islands. Now a U.S. National Landmark, this brick fortress protected the town from pirates and European armadas. This fort has served as St. Thomas' first government house, a church, and a community government. Today it is home to the Virgin Islands Museum.